Does White Discharge, Fishy Smell, Itchy Vagina Indicate Yeast Infection?

Hello, I am a worried 17 year old girl and since my last period I ve been discharging this white like fluid, strange kinda fishy smell, experienced itchy and burn with my vagina. I m still currently a virgin. I ve never had a vaginal odor not even on m period or discharge this long after a period. I haven t told anyone. This hasn t happened before. I have great hygiene. I m scared cause I believe it could be a Vaginal Yeast infection. I put Neosporin on it and the burning and most of the inchyness have gone away it just the smell and the discharge. It s been between 3 to 5 days since I ve noticed and it started. I ve even looked into my vagina after a shower and seen this white puffy cum like stuff which I cleaned out I checked again today and I don t see it again. I have masterbatered a lot more lately I know it s not that just thought to include it. I m scared and need help. I don t know what to so. Thanks for reading and helping. -A worried teen